Pectin coated hollow fiber polypropylene membranes.
The aim of this study was to prepare a composite membrane for the selective, extracorporeal removal of human LDL-cholesterol. Pectin coated on a porous polypropylene membrane (PP) was used as an active LDL adsorber. Three types of membrane preparations were performed: coating of native PP, coating after chemical etching and gamma-irradiated coated PP. Pectin coated fibers (PCF) were examined under scanning electron microscope (SEM) and tested for hydraulic permeability. As a result of the coating of native and etched PP membrane, pectin layers of various thicknesses (2-16 microm) and porosity were obtained. Irradiation by gamma rays gave no insoluble pectin layers.
Lewińska
D
D
Institute of Biocybernetics and Biomedical Engineering, Laboratory of Capillary Mass Exchangers, Warsaw, Poland.
Piatkiewicz
W
W
Rosiński
S
S
D001672:Biocompatible Materials; D003432:Cross-Linking Reagents; D008567:Membranes, Artificial; D008855:Microscopy, Electron, Scanning; D010368:Pectins / Q000648:ultrastructure; D010956:Plasmapheresis; D011126:Polypropylenes; D016062:Porosity; D013499:Surface Properties
D001672:Biocompatible Materials; D003432:Cross-Linking Reagents; D008567:Membranes, Artificial; D011126:Polypropylenes; D010368:Pectins